.px2rem(@name, @px) {
    @{name}: @px / 75 * 1rem;
}
.txh{
	display: flex;
}
html,doby{
	width: 100%;
	height: 100%;
    background: #f7f7f7;
}
#box{
	header{
		.px2rem(height,84);
		.px2rem(line-height,84);
		width: 100%;
		position: fixed;
		top: 0;
		left: 0;
		background: #fff;
		border-bottom: 1px solid #ccc;
		ul{
            .txh;
            justify-content:space-between;
			li{
              .px2rem(margin-left,30);
		      .px2rem(margin-right,30);
		      .px2rem(font-size,30);
			}
		}

	}
	section{
		flex:1;
		height: 100%;
		.px2rem(margin-top,84);
		.px2rem(margin-bottom,84);
		ul{
			
            li{
            	.txh;
            	justify-content:space-between;
            	.px2rem(height,100);
            	.px2rem(line-height,100);
            	.px2rem(font-size,30);
                border-bottom: 2px dashed #ccc;
                margin-left: 5%;
                margin-right: 5%;
            }
		}
		button{
			width: 90%;
			.px2rem(height,88);
			margin-left: 5%;
			margin-right: 5%;
			margin-top: 7%;
			margin-buttom: 7%;
			color: #fff;
			background: #ffa300;
			.px2rem(font-size,30);
		}
	    
}
footer{
		.px2rem(height,95);
		position: fixed;
		bottom:0;
		left:0;
		width: 100%;
		background: #fff;
		border-top: 1px solid #eee;
		ul{
			.txh;
			margin-top: 2%;
			a{
				flex:1;
			li{
				
				text-align: center;
               }
           }
               li:nth-child(3){
               	 margin-top:-100px;
               	 img{
               	 	width: 80%;
               	 }
               }
		}
	}
}